A liquid crystal display device comprises a first substrate, a second substrate, a liquid crystal layer, a first polarizer, a second polarizer and a first electrode layer. The liquid crystal layer is disposed between the first and the second substrates, and comprises a liquid crystal mixture comprising a chiral dopant. The first and the second polarizers are disposed on the first and the second substrates, respectively. The first polarizer has a first absorption axis. The first electrode layer is disposed on one of the first and second substrates, and has a first trunk, a second trunk and a plurality of branches. The first and the second trunks intersect to form at least a first area. A first angle θj is formed between the branches and the first trunk, and a second angle θp is formed between the first absorption axis and the first trunk.